Planetary hours
in Aix-en-Provence.
The day, from sunrise to sunset, is cut into twelve equal hours; so is the night, from sunset to the next sunrise. Each hour carries a planet, in the Chaldean order. A planetary hour therefore lasts 60 minutes only at the equinoxes: it all depends on the date and the city. Here are the exact hours for your city; what you do with them is up to you.
Planetary day of Wednesday, 17 December 2025: day of Mercury
- Sunrise
- 08:05
- Sunset
- 17:02
- Next sunrise
- 08:06
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury08:05 – 08:50
- 2☽︎ Moon08:50 – 09:35
- 3♄︎ Saturn09:35 – 10:20
- 4♃︎ Jupiter10:20 – 11:04
- 5♂︎ Mars11:04 – 11:49
- 6☉︎ Sun11:49 – 12:34
- 7♀︎ Venus12:34 – 13:19
- 8☿︎ Mercury13:19 – 14:03
- 9☽︎ Moon14:03 – 14:48
- 10♄︎ Saturn14:48 – 15:33
- 11♃︎ Jupiter15:33 – 16:18
- 12♂︎ Mars16:18 – 17:02
Night
- 1☉︎ Sun17:02 – 18:18
- 2♀︎ Venus18:18 – 19:33
- 3☿︎ Mercury19:33 – 20:48
- 4☽︎ Moon20:48 – 22:04
- 5♄︎ Saturn22:04 – 23:19
- 6♃︎ Jupiter23:19 – 00:34
- 7♂︎ Mars00:34 – 01:49
- 8☉︎ Sun01:49 – 03:05
- 9♀︎ Venus03:05 – 04:20
- 10☿︎ Mercury04:20 – 05:35
- 11☽︎ Moon05:35 – 06:51
- 12♄︎ Saturn06:51 – 08:06
Other cities · France
Questions
How are the planetary hours calculated in Aix-en-Provence?
On Wednesday, 17 December 2025, the Sun rises at 08:05 and sets at 17:02: the day lasts 8h 57m, that is twelve day hours of 45 min. The night, until the next sunrise at 08:06, lasts 15h 03m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
Mercury, from 08:05 to 08:50: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury again.
Today’s sky, on YOUR chart
Planetary hours are the same for everyone in a city. Your chart is yours alone: every morning AstroXP crosses the real sky with your birth, to the minute, and tells you what time it plays out for you.
On a computer? Scan this code with your phone.
Calendars
Sunrise and sunset calculated for the city (the Sun’s centre 0°50′ below the horizon: refraction and semi-diameter), local time of the city’s time zone. Checked against astronomy-engine, the app’s engine.